The Colt LE6943CK Monolithic Upper Assembly feature's Colt's new monolithic upper receiver. In addition to an uninterrupted full-length front rail, this upper receiver allows for a free-floated barrel. This LE6943CK Monolithic Upper Assembly also features a gas-block mounted front flip-up sight with bayonet lug and a flip-up rear sight. The barrel is Colt's standard 11.5" chrome lined M4 barrel with an A2 flash hider up front.

Specifications

• 10.5-Inch 1/7 twist Mil-Spec chrome lined MP tested barrel
• Unique direct gas operating system eliminates the conventional operating rod and results in fewer and lighter components
• Accommodates the full range of 5.56mm ammunition, including the NATO M855/SS109 and U.S. M193, utilizing a rifling twist of 1 turn in 7"
• Straight-line construction disperses recoil straight back to the shoulder, increasing handling capabilities, especially during repeated fire
• Cartridge case deflector allows easy operation in both right and left handed shooting positions for increased tactical applications
• Muzzle compensator further reduces muzzle climb and helps eliminate flash and dust signatures
• Ejection port cover protects the chamber from dust and mud
• Field strips easily without special tools for simple field user maintenance
• Flat top receiver allows for removable carrying handle and easy mounting of accessories
• Target style rear sight features dual apertures (0-200m, 300-600m) and adjusts for both windage and elevation
• High strength materials for greater comfort and effectiveness
• Caliber - 5.56mm
• Gas Direct system, Locking bolt
• Front Sight - Adjustable front
• Rear Sight - Target sight adjustable for windage and elevation
• Flash Hider

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